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AFE integrates programmable audio/video switch

San Jose, Calif. — Toshiba America Electronic Components, Inc. (TAEC) expanded its family of analog video front-end processors with a device that is said to maximize analog input design flexibility and reduce interface design complexity.

Designated TB1311AFG, the device is a programmable audio/video (A/V) and component switch that accepts all standard analog audio and video signals required for digital television, set-top boxes (STBs) and other A/V products.

“The TB1311AFG integrates the full spectrum and quantity of analog video and audio inputs required for most high-definition televisions and set-top boxes
into a single chip,” said David Cruikshank, business development manager for digital consumer products in the ASSP Business Unit at TAEC.

Previously, Toshiba offered A/V switches and component switches as separate products. The TB1311AFG's programmable A/V switching block, real-time format detector and automatic sync processor reduce board real estate, engineering time and product cost to realize a high-performance analog interface design, Cruikshank said.

This is the third product in Toshiba's analog video front-end processor family, joining the TB1305FG and TB1308FG devices introduced last year.

Among the device's main features are the programmable audio (L/R) block that can accept up to 10 inputs and 3 outputs, and the programmable video block that can accept a full variety of composite, S-video, component, RGB and SCART signals — and output up to 2 video signals plus a monitor.

Other key features include an automatic sync processor, a real-time format detector that supports display of high-resolution component video, and a no signal input detector that activates a dummy HD/VD signal output to stabilize the TV picture output.

 
 
See related block diagram

Samples are currently available and the device is in volume production. The TB1311AFG is priced at $5.00 each in 10,000-piece quantities. Click here for the TB1311AFG data sheet.

TAEC , 1-408-526-2612, www.chips.Toshiba.com.

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